What is the peak to peak voltage for an AC voltage with RMS 220 V? (Consider square root of 2 as 1.4)

This question was previously asked in
RRB ALP Electronics Mechanic 23 Jan 2019 Official Paper (Shift 2)
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  1. 110 V
  2. 616 V
  3. 250 V
  4. 308 V

Answer (Detailed Solution Below)

Option 2 : 616 V
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Detailed Solution

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Concept

The relationship between RMS and peak-to-peak voltage for an AC signal is given by:

\(V_{RMS}={V_m\over \sqrt{2}}\)

where, Vm = Peak value (maximum value)

VP-P = Peak-to-peak value

\(V_m=\sqrt{2}V_{RMS}\)

VP-P= 2 × Vm

Calculation

Given, VRMS = 220 V

Vm = 1.4 × 220

Vm = 308 V

VP-P= 2×308 = 616 V

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